Implementation and Evaluation for Sophisticated Periodic Execution Control in Embedded Systems
نویسندگان
چکیده
Embedded systems are complicated, and a large number of these systems are widely used today. In embedded systems, the types of processings to be executed are limited, and many processes are executed periodically. In such systems, we need to reduce the overhead of periodic execution control and the dispersion of the processing time. ART-Linux has been proposed as a conventional real-time operating system that can be used for this purpose in various devices such as robots. In this paper, we discuss the periodic execution control of ART-Linux and clarify several problems. Next, we propose a design for sophisticated periodic execution control in order to solve these problems. In addition, we discuss the realization of periodic execution control, and the effects of the proposed control. Finally, we show the results of our evaluation for the release and the wait to clarify the effects of the proposed control.
منابع مشابه
Side channel parameter characteristics of code injection attacks
Embedded systems are suggestive targets for code injection attacks in the recent years. Software protection mechanisms, and in general computers, are not usually applicable in embedded systems since they have limited resources like memory and process power. In this paper we investigate side channel characteristics of embedded systems and their applicability in code injection attack detection. T...
متن کاملThe Effect of the Implementation of Quality Management System (ISO 9001: 2002) on the Improvement of the Performance of Medical Records Department in Shiraz Namazi Hospital (2003-2005)
Background & Aims: Nowadays, new attitudes of clients, patients and students toward the quality of health care services, have led to unifying different systems in educational centers, which has been recognized as quality management system. The ISO standard series have created systems that integrate intra and inter organization processes to improve the quality of health services. The aim of the ...
متن کاملModeling Fault-tolerant Distributed Systems for Discrete Controller Synthesis
Embedded systems require safe design methods based on formal methods, as well as safe execution based on fault-tolerance techniques. We propose a safe design method for safe execution systems: it uses discrete controller synthesis (DCS) to generate a correct reconfiguring system. The properties enforced concern consistent execution, functionality fulfillment (whatever the faults, under some fai...
متن کاملA Formal Framework for Precise Parametric WCET Formulas
Parametric worst-case execution time (WCET) formulas are a valuable tool to estimate the impact of input data properties on the WCET at design time, or to guide scheduling decisions at runtime. Previous approaches to parametric WCET analysis either provide only informal adhoc solutions or tend to be rather pessimistic, as they do not take flow constraints other than simple loop bounds into acco...
متن کاملManaging Temporal Constraints in Control Systems
Design and implementation of motion control applications include the mapping of control design to real-time system implementation. Important parameters from control design include deviation from nominal period time of an activity, end-to-end timing constraints, temporal correlation between different sampling tasks, and constraints on temporal variations in output. These parameters should also b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011